pub fn parse_geometry(spec: &str) -> Result<RocketGeometry>Expand description
Parse the compact geometry spec used by the CLI:
nose=shape:length:diameter,tube=length:diameter,fins=count:root:tip:span:sweep:thickness,
with an optional boat=length:fore_diameter:aft_diameter conical boat-tail
at the aft end. The fin thickness is optional (default 2 mm). Lengths are
in metres.